For fans of challenging puzzles :D
Something around the 5-7th grade level from the physics section:
What will happen to a piece of ice brought into a room with a temperature of 0 degrees Celsius:
1) It will change from a solid state to a liquid state/melt.
2) There will be no changes.
3) Your own option.
P.S. Anyone can repeat offline battles; it's not like online where you only have one attempt.
There will be no changes. Water at 0 C can be in either a solid or liquid state. And even if the room is given a little heat, first all the ice will melt, because the heat will be used not to heat the water, but to break down the crystal lattice, and then the temperature in the room will start to increase.